24w45a

api/src/main/java/com/viaversion/viaversion/api/minecraft/data/StructuredDataKey.java

@@ -36,6 +36,7 @@ import com.viaversion.viaversion.api.minecraft.item.data.BannerPatternLayer;
 import com.viaversion.viaversion.api.minecraft.item.data.Bee;
 import com.viaversion.viaversion.api.minecraft.item.data.BlockStateProperties;
 import com.viaversion.viaversion.api.minecraft.item.data.Consumable1_21_2;
+import com.viaversion.viaversion.api.minecraft.item.data.CustomModelData1_21_4;
 import com.viaversion.viaversion.api.minecraft.item.data.DamageResistant;
 import com.viaversion.viaversion.api.minecraft.item.data.DeathProtection;
 import com.viaversion.viaversion.api.minecraft.item.data.DyedColor;
@@ -63,6 +64,7 @@ import com.viaversion.viaversion.api.type.types.ArrayType;
 import com.viaversion.viaversion.api.type.types.version.Types1_20_5;
 import com.viaversion.viaversion.api.type.types.version.Types1_21;
 import com.viaversion.viaversion.api.type.types.version.Types1_21_2;
+import com.viaversion.viaversion.api.type.types.version.Types1_21_4;
 import com.viaversion.viaversion.util.Unit;
 
 public record StructuredDataKey<T>(String identifier, Type<T> type) {
@@ -82,7 +84,8 @@ public record StructuredDataKey<T>(String identifier, Type<T> type) {
     public static final StructuredDataKey<AdventureModePredicate> CAN_BREAK = new StructuredDataKey<>("can_break", AdventureModePredicate.TYPE);
     public static final StructuredDataKey<AttributeModifiers1_20_5> ATTRIBUTE_MODIFIERS1_20_5 = new StructuredDataKey<>("attribute_modifiers", AttributeModifiers1_20_5.TYPE);
     public static final StructuredDataKey<AttributeModifiers1_21> ATTRIBUTE_MODIFIERS1_21 = new StructuredDataKey<>("attribute_modifiers", AttributeModifiers1_21.TYPE);
-    public static final StructuredDataKey<Integer> CUSTOM_MODEL_DATA = new StructuredDataKey<>("custom_model_data", Types.VAR_INT);
+    public static final StructuredDataKey<Integer> CUSTOM_MODEL_DATA1_20_5 = new StructuredDataKey<>("custom_model_data", Types.VAR_INT);
+    public static final StructuredDataKey<CustomModelData1_21_4> CUSTOM_MODEL_DATA1_21_2 = new StructuredDataKey<>("custom_model_data", CustomModelData1_21_4.TYPE);
     public static final StructuredDataKey<Unit> HIDE_ADDITIONAL_TOOLTIP = new StructuredDataKey<>("hide_additional_tooltip", Types.EMPTY);
     public static final StructuredDataKey<Unit> HIDE_TOOLTIP = new StructuredDataKey<>("hide_tooltip", Types.EMPTY);
     public static final StructuredDataKey<Integer> REPAIR_COST = new StructuredDataKey<>("repair_cost", Types.VAR_INT);
@@ -93,7 +96,8 @@ public record StructuredDataKey<T>(String identifier, Type<T> type) {
     public static final StructuredDataKey<FoodProperties1_20_5> FOOD1_21 = new StructuredDataKey<>("food", FoodProperties1_20_5.TYPE1_21);
     public static final StructuredDataKey<FoodProperties1_21_2> FOOD1_21_2 = new StructuredDataKey<>("food", FoodProperties1_21_2.TYPE);
     public static final StructuredDataKey<Consumable1_21_2> CONSUMABLE1_21_2 = new StructuredDataKey<>("consumable", Consumable1_21_2.TYPE);
-    public static final StructuredDataKey<Item> USE_REMAINDER = new StructuredDataKey<>("use_remainder", Types1_21_2.ITEM);
+    public static final StructuredDataKey<Item> USE_REMAINDER1_21_2 = new StructuredDataKey<>("use_remainder", Types1_21_2.ITEM);
+    public static final StructuredDataKey<Item> USE_REMAINDER1_21_4 = new StructuredDataKey<>("use_remainder", Types1_21_4.ITEM);
     public static final StructuredDataKey<UseCooldown> USE_COOLDOWN = new StructuredDataKey<>("use_cooldown", UseCooldown.TYPE);
     public static final StructuredDataKey<Unit> FIRE_RESISTANT = new StructuredDataKey<>("fire_resistant", Types.EMPTY);
     public static final StructuredDataKey<DamageResistant> DAMAGE_RESISTANT = new StructuredDataKey<>("damage_resistant", DamageResistant.TYPE);
@@ -113,15 +117,18 @@ public record StructuredDataKey<T>(String identifier, Type<T> type) {
     public static final StructuredDataKey<Item[]> CHARGED_PROJECTILES1_20_5 = new StructuredDataKey<>("charged_projectiles", Types1_20_5.ITEM_ARRAY);
     public static final StructuredDataKey<Item[]> CHARGED_PROJECTILES1_21 = new StructuredDataKey<>("charged_projectiles", Types1_21.ITEM_ARRAY);
     public static final StructuredDataKey<Item[]> CHARGED_PROJECTILES1_21_2 = new StructuredDataKey<>("charged_projectiles", Types1_21_2.ITEM_ARRAY);
+    public static final StructuredDataKey<Item[]> CHARGED_PROJECTILES1_21_4 = new StructuredDataKey<>("charged_projectiles", Types1_21_4.ITEM_ARRAY);
     public static final StructuredDataKey<Item[]> BUNDLE_CONTENTS1_20_5 = new StructuredDataKey<>("bundle_contents", Types1_20_5.ITEM_ARRAY);
     public static final StructuredDataKey<Item[]> BUNDLE_CONTENTS1_21 = new StructuredDataKey<>("bundle_contents", Types1_21.ITEM_ARRAY);
     public static final StructuredDataKey<Item[]> BUNDLE_CONTENTS1_21_2 = new StructuredDataKey<>("bundle_contents", Types1_21_2.ITEM_ARRAY);
+    public static final StructuredDataKey<Item[]> BUNDLE_CONTENTS1_21_4 = new StructuredDataKey<>("bundle_contents", Types1_21_4.ITEM_ARRAY);
     public static final StructuredDataKey<PotionContents> POTION_CONTENTS1_20_5 = new StructuredDataKey<>("potion_contents", PotionContents.TYPE1_20_5);
     public static final StructuredDataKey<PotionContents> POTION_CONTENTS1_21_2 = new StructuredDataKey<>("potion_contents", PotionContents.TYPE1_21_2);
     public static final StructuredDataKey<SuspiciousStewEffect[]> SUSPICIOUS_STEW_EFFECTS = new StructuredDataKey<>("suspicious_stew_effects", SuspiciousStewEffect.ARRAY_TYPE);
     public static final StructuredDataKey<FilterableString[]> WRITABLE_BOOK_CONTENT = new StructuredDataKey<>("writable_book_content", FilterableString.ARRAY_TYPE);
     public static final StructuredDataKey<WrittenBook> WRITTEN_BOOK_CONTENT = new StructuredDataKey<>("written_book_content", WrittenBook.TYPE);
-    public static final StructuredDataKey<ArmorTrim> TRIM = new StructuredDataKey<>("trim", ArmorTrim.TYPE);
+    public static final StructuredDataKey<ArmorTrim> TRIM1_20_5 = new StructuredDataKey<>("trim", ArmorTrim.TYPE1_20_5);
+    public static final StructuredDataKey<ArmorTrim> TRIM1_21_4 = new StructuredDataKey<>("trim", ArmorTrim.TYPE1_21_4);
     public static final StructuredDataKey<CompoundTag> DEBUG_STICK_STATE = new StructuredDataKey<>("debug_stick_state", Types.COMPOUND_TAG);
     public static final StructuredDataKey<CompoundTag> ENTITY_DATA = new StructuredDataKey<>("entity_data", Types.COMPOUND_TAG);
     public static final StructuredDataKey<CompoundTag> BUCKET_ENTITY_DATA = new StructuredDataKey<>("bucket_entity_data", Types.COMPOUND_TAG);
@@ -142,6 +149,7 @@ public record StructuredDataKey<T>(String identifier, Type<T> type) {
     public static final StructuredDataKey<Item[]> CONTAINER1_20_5 = new StructuredDataKey<>("container", Types1_20_5.ITEM_ARRAY);
     public static final StructuredDataKey<Item[]> CONTAINER1_21 = new StructuredDataKey<>("container", Types1_21.ITEM_ARRAY);
     public static final StructuredDataKey<Item[]> CONTAINER1_21_2 = new StructuredDataKey<>("container", new ArrayType<>(Types1_21_2.ITEM, 256));
+    public static final StructuredDataKey<Item[]> CONTAINER1_21_4 = new StructuredDataKey<>("container", Types1_21_4.ITEM_ARRAY);
     public static final StructuredDataKey<BlockStateProperties> BLOCK_STATE = new StructuredDataKey<>("block_state", BlockStateProperties.TYPE);
     public static final StructuredDataKey<Bee[]> BEES = new StructuredDataKey<>("bees", Bee.ARRAY_TYPE);
     public static final StructuredDataKey<Tag> LOCK = new StructuredDataKey<>("lock", Types.TAG);

api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/ArmorTrim.java

@@ -29,10 +29,10 @@ import it.unimi.dsi.fastutil.ints.Int2IntFunction;
 
 public record ArmorTrim(Holder<ArmorTrimMaterial> material, Holder<ArmorTrimPattern> pattern, boolean showInTooltip) {
 
-    public static final Type<ArmorTrim> TYPE = new Type<>(ArmorTrim.class) {
+    public static final Type<ArmorTrim> TYPE1_20_5 = new Type<>(ArmorTrim.class) {
         @Override
         public ArmorTrim read(final ByteBuf buffer) {
-            final Holder<ArmorTrimMaterial> material = ArmorTrimMaterial.TYPE.read(buffer);
+            final Holder<ArmorTrimMaterial> material = ArmorTrimMaterial.TYPE1_20_5.read(buffer);
             final Holder<ArmorTrimPattern> pattern = ArmorTrimPattern.TYPE.read(buffer);
             final boolean showInTooltip = buffer.readBoolean();
             return new ArmorTrim(material, pattern, showInTooltip);
@@ -40,7 +40,23 @@ public record ArmorTrim(Holder<ArmorTrimMaterial> material, Holder<ArmorTrimPatt
 
         @Override
         public void write(final ByteBuf buffer, final ArmorTrim value) {
-            ArmorTrimMaterial.TYPE.write(buffer, value.material);
+            ArmorTrimMaterial.TYPE1_20_5.write(buffer, value.material);
+            ArmorTrimPattern.TYPE.write(buffer, value.pattern);
+            buffer.writeBoolean(value.showInTooltip);
+        }
+    };
+    public static final Type<ArmorTrim> TYPE1_21_4 = new Type<>(ArmorTrim.class) {
+        @Override
+        public ArmorTrim read(final ByteBuf buffer) {
+            final Holder<ArmorTrimMaterial> material = ArmorTrimMaterial.TYPE1_21_4.read(buffer);
+            final Holder<ArmorTrimPattern> pattern = ArmorTrimPattern.TYPE.read(buffer);
+            final boolean showInTooltip = buffer.readBoolean();
+            return new ArmorTrim(material, pattern, showInTooltip);
+        }
+
+        @Override
+        public void write(final ByteBuf buffer, final ArmorTrim value) {
+            ArmorTrimMaterial.TYPE1_21_4.write(buffer, value.material);
             ArmorTrimPattern.TYPE.write(buffer, value.pattern);
             buffer.writeBoolean(value.showInTooltip);
         }

api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/ArmorTrimMaterial.java

@@ -33,7 +33,11 @@ import java.util.Map;
 public record ArmorTrimMaterial(String assetName, int itemId, float itemModelIndex,
                                 Map<String, String> overrideArmorMaterials, Tag description) {
 
-    public static final HolderType<ArmorTrimMaterial> TYPE = new HolderType<>() {
+    public ArmorTrimMaterial(final String assetName, final int itemId, final Map<String, String> overrideArmorMaterials, final Tag description) {
+        this(assetName, itemId, 0F, overrideArmorMaterials, description);
+    }
+
+    public static final HolderType<ArmorTrimMaterial> TYPE1_20_5 = new HolderType<>() {
         @Override
         public ArmorTrimMaterial readDirect(final ByteBuf buffer) {
             final String assetName = Types.STRING.read(buffer);
@@ -68,6 +72,39 @@ public record ArmorTrimMaterial(String assetName, int itemId, float itemModelInd
         }
     };
 
+    public static final HolderType<ArmorTrimMaterial> TYPE1_21_4 = new HolderType<>() {
+        @Override
+        public ArmorTrimMaterial readDirect(final ByteBuf buffer) {
+            final String assetName = Types.STRING.read(buffer);
+            final int item = Types.VAR_INT.readPrimitive(buffer);
+
+            final int overrideArmorMaterialsSize = Types.VAR_INT.readPrimitive(buffer);
+            final Map<String, String> overrideArmorMaterials = new Object2ObjectArrayMap<>(overrideArmorMaterialsSize);
+            for (int i = 0; i < overrideArmorMaterialsSize; i++) {
+                final String key = Types.STRING.read(buffer);
+                final String value = Types.STRING.read(buffer);
+                overrideArmorMaterials.put(key, value);
+            }
+
+            final Tag description = Types.TAG.read(buffer);
+            return new ArmorTrimMaterial(assetName, item, overrideArmorMaterials, description);
+        }
+
+        @Override
+        public void writeDirect(final ByteBuf buffer, final ArmorTrimMaterial value) {
+            Types.STRING.write(buffer, value.assetName());
+            Types.VAR_INT.writePrimitive(buffer, value.itemId());
+
+            Types.VAR_INT.writePrimitive(buffer, value.overrideArmorMaterials().size());
+            for (final Map.Entry<String, String> entry : value.overrideArmorMaterials().entrySet()) {
+                Types.STRING.write(buffer, entry.getKey());
+                Types.STRING.write(buffer, entry.getValue());
+            }
+
+            Types.TAG.write(buffer, value.description());
+        }
+    };
+
     public ArmorTrimMaterial rewrite(final Int2IntFunction idRewriteFunction) {
         return new ArmorTrimMaterial(assetName, idRewriteFunction.applyAsInt(itemId), itemModelIndex, overrideArmorMaterials, description);
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/CustomModelData1_21_4.java

@@ -0,0 +1,49 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.item.data;
+
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import io.netty.buffer.ByteBuf;
+
+public record CustomModelData1_21_4(float[] floats, boolean[] booleans, String[] strings, int[] colors) {
+
+    public static final Type<CustomModelData1_21_4> TYPE = new Type<>(CustomModelData1_21_4.class) {
+        @Override
+        public CustomModelData1_21_4 read(final ByteBuf buffer) {
+            final float[] floats = Types.FLOAT_ARRAY_PRIMITIVE.read(buffer);
+            final boolean[] booleans = Types.BOOLEAN_ARRAY_PRIMITIVE.read(buffer);
+            final String[] strings = Types.STRING_ARRAY.read(buffer);
+            final int[] colors = Types.INT_ARRAY_PRIMITIVE.read(buffer);
+            return new CustomModelData1_21_4(floats, booleans, strings, colors);
+        }
+
+        @Override
+        public void write(final ByteBuf buffer, final CustomModelData1_21_4 value) {
+            Types.FLOAT_ARRAY_PRIMITIVE.write(buffer, value.floats());
+            Types.BOOLEAN_ARRAY_PRIMITIVE.write(buffer, value.booleans());
+            Types.STRING_ARRAY.write(buffer, value.strings());
+            Types.INT_ARRAY_PRIMITIVE.write(buffer, value.colors());
+        }
+    };
+}

api/src/main/java/com/viaversion/viaversion/api/protocol/version/ProtocolVersion.java

@@ -87,7 +87,7 @@ public class ProtocolVersion implements Comparable<ProtocolVersion> {
     public static final ProtocolVersion v1_20_5 = register(766, "1.20.5-1.20.6", new SubVersionRange("1.20", 5, 6));
     public static final ProtocolVersion v1_21 = register(767, "1.21-1.21.1", new SubVersionRange("1.21", 0, 1));
     public static final ProtocolVersion v1_21_2 = register(768, "1.21.2-1.21.3", new SubVersionRange("1.21", 2, 3));
-    public static final ProtocolVersion v1_21_4 = register(769, 220, "1.21.4");
+    public static final ProtocolVersion v1_21_4 = register(769, 221, "1.21.4");
     public static final ProtocolVersion unknown = new ProtocolVersion(VersionType.SPECIAL, -1, -1, "UNKNOWN", null);
 
     static {

api/src/main/java/com/viaversion/viaversion/api/type/Types.java

@@ -45,12 +45,14 @@ import com.viaversion.viaversion.api.minecraft.item.data.Enchantments;
 import com.viaversion.viaversion.api.minecraft.ChunkPosition;
 import com.viaversion.viaversion.api.type.types.ArrayType;
 import com.viaversion.viaversion.api.type.types.BitSetType;
+import com.viaversion.viaversion.api.type.types.BooleanArrayType;
 import com.viaversion.viaversion.api.type.types.BooleanType;
 import com.viaversion.viaversion.api.type.types.ByteArrayType;
 import com.viaversion.viaversion.api.type.types.ByteType;
 import com.viaversion.viaversion.api.type.types.ComponentType;
 import com.viaversion.viaversion.api.type.types.DoubleType;
 import com.viaversion.viaversion.api.type.types.EmptyType;
+import com.viaversion.viaversion.api.type.types.FloatArrayType;
 import com.viaversion.viaversion.api.type.types.FloatType;
 import com.viaversion.viaversion.api.type.types.IntArrayType;
 import com.viaversion.viaversion.api.type.types.IntType;
@@ -115,14 +117,17 @@ public final class Types {
     public static final Type<byte[]> OPTIONAL_BYTE_ARRAY_PRIMITIVE = new ByteArrayType.OptionalByteArrayType();
     public static final Type<byte[]> SHORT_BYTE_ARRAY = new ShortByteArrayType();
     public static final Type<byte[]> REMAINING_BYTES = new RemainingBytesType();
-    public static final Type<int[]> INT_ARRAY_PRIMITIVE = new IntArrayType();
 
     public static final ShortType SHORT = new ShortType();
     public static final UnsignedShortType UNSIGNED_SHORT = new UnsignedShortType();
 
     public static final IntType INT = new IntType();
+    public static final Type<int[]> INT_ARRAY_PRIMITIVE = new IntArrayType();
+
     public static final FloatType FLOAT = new FloatType();
     public static final FloatType.OptionalFloatType OPTIONAL_FLOAT = new FloatType.OptionalFloatType();
+    public static final Type<float[]> FLOAT_ARRAY_PRIMITIVE = new FloatArrayType();
+
     public static final DoubleType DOUBLE = new DoubleType();
 
     public static final LongType LONG = new LongType();
@@ -130,6 +135,7 @@ public final class Types {
 
     public static final BooleanType BOOLEAN = new BooleanType();
     public static final BooleanType.OptionalBooleanType OPTIONAL_BOOLEAN = new BooleanType.OptionalBooleanType();
+    public static final Type<boolean[]> BOOLEAN_ARRAY_PRIMITIVE = new BooleanArrayType();
 
     /* Other Types */
     public static final Type<JsonElement> COMPONENT = new ComponentType();

api/src/main/java/com/viaversion/viaversion/api/type/types/BooleanArrayType.java

@@ -0,0 +1,67 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.type.types;
+
+import com.google.common.base.Preconditions;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import io.netty.buffer.ByteBuf;
+
+// Ok...
+public class BooleanArrayType extends Type<boolean[]> {
+
+    private final int length;
+
+    public BooleanArrayType(final int length) {
+        super(boolean[].class);
+        this.length = length;
+    }
+
+    public BooleanArrayType() {
+        super(boolean[].class);
+        this.length = -1;
+    }
+
+    @Override
+    public void write(final ByteBuf buffer, final boolean[] object) {
+        if (this.length != -1) {
+            Preconditions.checkArgument(length == object.length, "Length does not match expected length");
+        } else {
+            Types.VAR_INT.writePrimitive(buffer, object.length);
+        }
+        for (final boolean b : object) {
+            buffer.writeBoolean(b);
+        }
+    }
+
+    @Override
+    public boolean[] read(final ByteBuf buffer) {
+        final int length = this.length == -1 ? Types.VAR_INT.readPrimitive(buffer) : this.length;
+        Preconditions.checkArgument(buffer.isReadable(length), "Length is fewer than readable bytes");
+        final boolean[] array = new boolean[length];
+        for (int i = 0; i < length; i++) {
+            array[i] = buffer.readBoolean();
+        }
+        return array;
+    }
+}

api/src/main/java/com/viaversion/viaversion/api/type/types/FloatArrayType.java

@@ -0,0 +1,66 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.type.types;
+
+import com.google.common.base.Preconditions;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import io.netty.buffer.ByteBuf;
+
+public class FloatArrayType extends Type<float[]> {
+
+    private final int length;
+
+    public FloatArrayType(final int length) {
+        super(float[].class);
+        this.length = length;
+    }
+
+    public FloatArrayType() {
+        super(float[].class);
+        this.length = -1;
+    }
+
+    @Override
+    public void write(final ByteBuf buffer, final float[] object) {
+        if (this.length != -1) {
+            Preconditions.checkArgument(length == object.length, "Length does not match expected length");
+        } else {
+            Types.VAR_INT.writePrimitive(buffer, object.length);
+        }
+        for (final float f : object) {
+            buffer.writeFloat(f);
+        }
+    }
+
+    @Override
+    public float[] read(final ByteBuf buffer) {
+        final int length = this.length == -1 ? Types.VAR_INT.readPrimitive(buffer) : this.length;
+        Preconditions.checkArgument(buffer.isReadable(length), "Length is fewer than readable bytes");
+        final float[] array = new float[length];
+        for (int i = 0; i < length; i++) {
+            array[i] = buffer.readFloat();
+        }
+        return array;
+    }
+}

common/src/main/java/com/viaversion/viaversion/protocols/v1_20_3to1_20_5/Protocol1_20_3To1_20_5.java

@@ -270,13 +270,13 @@ public final class Protocol1_20_3To1_20_5 extends AbstractProtocol<ClientboundPa
             .add(StructuredDataKey.HIDE_TOOLTIP).add(StructuredDataKey.FOOD1_20_5).add(StructuredDataKey.FIRE_RESISTANT)
             .add(StructuredDataKey.CUSTOM_NAME).add(StructuredDataKey.LORE).add(StructuredDataKey.ENCHANTMENTS)
             .add(StructuredDataKey.CAN_PLACE_ON).add(StructuredDataKey.CAN_BREAK).add(StructuredDataKey.ATTRIBUTE_MODIFIERS1_20_5)
-            .add(StructuredDataKey.CUSTOM_MODEL_DATA).add(StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP).add(StructuredDataKey.REPAIR_COST)
+            .add(StructuredDataKey.CUSTOM_MODEL_DATA1_20_5).add(StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP).add(StructuredDataKey.REPAIR_COST)
             .add(StructuredDataKey.CREATIVE_SLOT_LOCK).add(StructuredDataKey.ENCHANTMENT_GLINT_OVERRIDE).add(StructuredDataKey.INTANGIBLE_PROJECTILE)
             .add(StructuredDataKey.STORED_ENCHANTMENTS).add(StructuredDataKey.DYED_COLOR).add(StructuredDataKey.MAP_COLOR)
             .add(StructuredDataKey.MAP_ID).add(StructuredDataKey.MAP_DECORATIONS).add(StructuredDataKey.MAP_POST_PROCESSING)
             .add(StructuredDataKey.CHARGED_PROJECTILES1_20_5).add(StructuredDataKey.BUNDLE_CONTENTS1_20_5).add(StructuredDataKey.POTION_CONTENTS1_20_5)
             .add(StructuredDataKey.SUSPICIOUS_STEW_EFFECTS).add(StructuredDataKey.WRITABLE_BOOK_CONTENT).add(StructuredDataKey.WRITTEN_BOOK_CONTENT)
-            .add(StructuredDataKey.TRIM).add(StructuredDataKey.DEBUG_STICK_STATE).add(StructuredDataKey.ENTITY_DATA)
+            .add(StructuredDataKey.TRIM1_20_5).add(StructuredDataKey.DEBUG_STICK_STATE).add(StructuredDataKey.ENTITY_DATA)
             .add(StructuredDataKey.BUCKET_ENTITY_DATA).add(StructuredDataKey.BLOCK_ENTITY_DATA).add(StructuredDataKey.INSTRUMENT1_20_5)
             .add(StructuredDataKey.RECIPES).add(StructuredDataKey.LODESTONE_TRACKER).add(StructuredDataKey.FIREWORK_EXPLOSION)
             .add(StructuredDataKey.FIREWORKS).add(StructuredDataKey.PROFILE).add(StructuredDataKey.NOTE_BLOCK_SOUND)

common/src/main/java/com/viaversion/viaversion/protocols/v1_20_3to1_20_5/rewriter/BlockItemPacketRewriter1_20_5.java

@@ -459,7 +459,7 @@ public final class BlockItemPacketRewriter1_20_5 extends ItemRewriter<Clientboun
 
         final NumberTag customModelData = tag.getNumberTag("CustomModelData");
         if (customModelData != null) {
-            data.set(StructuredDataKey.CUSTOM_MODEL_DATA, customModelData.asInt());
+            data.set(StructuredDataKey.CUSTOM_MODEL_DATA1_20_5, customModelData.asInt());
         }
 
         final CompoundTag blockState = tag.getCompoundTag("BlockStateTag");
@@ -1045,7 +1045,7 @@ public final class BlockItemPacketRewriter1_20_5 extends ItemRewriter<Clientboun
             ));
         } else return;
 
-        data.set(StructuredDataKey.TRIM, new ArmorTrim(materialHolder, patternHolder, showInTooltip));
+        data.set(StructuredDataKey.TRIM1_20_5, new ArmorTrim(materialHolder, patternHolder, showInTooltip));
     }
 
     private void updateMobTags(final StructuredDataContainer data, final CompoundTag tag) {

common/src/main/java/com/viaversion/viaversion/protocols/v1_20_3to1_20_5/rewriter/ComponentRewriter1_20_5.java

@@ -124,7 +124,7 @@ public class ComponentRewriter1_20_5<C extends ClientboundPacketType> extends Co
         register(StructuredDataKey.CAN_PLACE_ON, this::convertCanPlaceOn);
         register(StructuredDataKey.CAN_BREAK, this::convertCanBreak);
         register(StructuredDataKey.ATTRIBUTE_MODIFIERS1_20_5, this::convertAttributeModifiers);
-        register(StructuredDataKey.CUSTOM_MODEL_DATA, this::convertCustomModelData);
+        register(StructuredDataKey.CUSTOM_MODEL_DATA1_20_5, this::convertCustomModelData);
         register(StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP, this::convertHideAdditionalTooltip);
         register(StructuredDataKey.HIDE_TOOLTIP, this::convertHideTooltip);
         register(StructuredDataKey.REPAIR_COST, this::convertRepairCost);
@@ -146,7 +146,7 @@ public class ComponentRewriter1_20_5<C extends ClientboundPacketType> extends Co
         register(StructuredDataKey.SUSPICIOUS_STEW_EFFECTS, this::convertSuspiciousStewEffects);
         register(StructuredDataKey.WRITABLE_BOOK_CONTENT, this::convertWritableBookContent);
         register(StructuredDataKey.WRITTEN_BOOK_CONTENT, this::convertWrittenBookContent);
-        register(StructuredDataKey.TRIM, this::convertTrim);
+        register(StructuredDataKey.TRIM1_20_5, this::convertTrim);
         register(StructuredDataKey.DEBUG_STICK_STATE, this::convertDebugStickRate);
         register(StructuredDataKey.ENTITY_DATA, this::convertEntityData);
         register(StructuredDataKey.BUCKET_ENTITY_DATA, this::convertBucketEntityData);

common/src/main/java/com/viaversion/viaversion/protocols/v1_20_3to1_20_5/rewriter/StructuredDataConverter.java

@@ -151,7 +151,7 @@ public final class StructuredDataConverter {
                 putHideFlag(tag, HIDE_ATTRIBUTES);
             }
         });
-        register(StructuredDataKey.CUSTOM_MODEL_DATA, (data, tag) -> tag.putInt("CustomModelData", data));
+        register(StructuredDataKey.CUSTOM_MODEL_DATA1_20_5, (data, tag) -> tag.putInt("CustomModelData", data));
         register(StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP, (data, tag) -> putHideFlag(tag, 0x20));
         register(StructuredDataKey.REPAIR_COST, (data, tag) -> tag.putInt("RepairCost", data));
         register(StructuredDataKey.DYED_COLOR, (data, tag) -> {
@@ -513,7 +513,7 @@ public final class StructuredDataConverter {
                 tag.putInt("map_scale_direction", 1);
             }
         });
-        register(StructuredDataKey.TRIM, (connection, data, tag) -> {
+        register(StructuredDataKey.TRIM1_20_5, (connection, data, tag) -> {
             final CompoundTag trimTag = new CompoundTag();
             final ArmorTrimStorage trimStorage = connection.get(ArmorTrimStorage.class);
             if (data.material().isDirect()) {

common/src/main/java/com/viaversion/viaversion/protocols/v1_20_5to1_21/Protocol1_20_5To1_21.java

@@ -203,13 +203,13 @@ public final class Protocol1_20_5To1_21 extends AbstractProtocol<ClientboundPack
             .add(StructuredDataKey.HIDE_TOOLTIP).add(StructuredDataKey.FIRE_RESISTANT)
             .add(StructuredDataKey.CUSTOM_NAME).add(StructuredDataKey.LORE).add(StructuredDataKey.ENCHANTMENTS)
             .add(StructuredDataKey.CAN_PLACE_ON).add(StructuredDataKey.CAN_BREAK)
-            .add(StructuredDataKey.CUSTOM_MODEL_DATA).add(StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP).add(StructuredDataKey.REPAIR_COST)
+            .add(StructuredDataKey.CUSTOM_MODEL_DATA1_20_5).add(StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP).add(StructuredDataKey.REPAIR_COST)
             .add(StructuredDataKey.CREATIVE_SLOT_LOCK).add(StructuredDataKey.ENCHANTMENT_GLINT_OVERRIDE).add(StructuredDataKey.INTANGIBLE_PROJECTILE)
             .add(StructuredDataKey.STORED_ENCHANTMENTS).add(StructuredDataKey.DYED_COLOR).add(StructuredDataKey.MAP_COLOR)
             .add(StructuredDataKey.MAP_ID).add(StructuredDataKey.MAP_DECORATIONS).add(StructuredDataKey.MAP_POST_PROCESSING)
             .add(StructuredDataKey.CHARGED_PROJECTILES1_21).add(StructuredDataKey.BUNDLE_CONTENTS1_21).add(StructuredDataKey.POTION_CONTENTS1_20_5)
             .add(StructuredDataKey.SUSPICIOUS_STEW_EFFECTS).add(StructuredDataKey.WRITABLE_BOOK_CONTENT).add(StructuredDataKey.WRITTEN_BOOK_CONTENT)
-            .add(StructuredDataKey.TRIM).add(StructuredDataKey.DEBUG_STICK_STATE).add(StructuredDataKey.ENTITY_DATA)
+            .add(StructuredDataKey.TRIM1_20_5).add(StructuredDataKey.DEBUG_STICK_STATE).add(StructuredDataKey.ENTITY_DATA)
             .add(StructuredDataKey.BUCKET_ENTITY_DATA).add(StructuredDataKey.BLOCK_ENTITY_DATA).add(StructuredDataKey.INSTRUMENT1_20_5)
             .add(StructuredDataKey.RECIPES).add(StructuredDataKey.LODESTONE_TRACKER).add(StructuredDataKey.FIREWORK_EXPLOSION)
             .add(StructuredDataKey.FIREWORKS).add(StructuredDataKey.PROFILE).add(StructuredDataKey.NOTE_BLOCK_SOUND)

common/src/main/java/com/viaversion/viaversion/protocols/v1_21_2to1_21_4/Protocol1_21_2To1_21_4.java

@@ -166,16 +166,15 @@ public final class Protocol1_21_2To1_21_4 extends AbstractProtocol<ClientboundPa
             .reader("entity_effect", ParticleType.Readers.COLOR)
             .reader("trail", ParticleType.Readers.TRAIL1_21_4)
             .reader("item", ParticleType.Readers.item(itemRewriter.mappedItemType()));
-        // TODO Nothing not yet, keep since it'll probably be needed
         Types1_21_4.STRUCTURED_DATA.filler(this).add(StructuredDataKey.CUSTOM_DATA, StructuredDataKey.MAX_STACK_SIZE, StructuredDataKey.MAX_DAMAGE,
             StructuredDataKey.UNBREAKABLE, StructuredDataKey.RARITY, StructuredDataKey.HIDE_TOOLTIP, StructuredDataKey.DAMAGE_RESISTANT,
             StructuredDataKey.CUSTOM_NAME, StructuredDataKey.LORE, StructuredDataKey.ENCHANTMENTS, StructuredDataKey.CAN_PLACE_ON,
-            StructuredDataKey.CAN_BREAK, StructuredDataKey.CUSTOM_MODEL_DATA, StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP,
+            StructuredDataKey.CAN_BREAK, StructuredDataKey.CUSTOM_MODEL_DATA1_21_2, StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP,
             StructuredDataKey.REPAIR_COST, StructuredDataKey.CREATIVE_SLOT_LOCK, StructuredDataKey.ENCHANTMENT_GLINT_OVERRIDE,
             StructuredDataKey.INTANGIBLE_PROJECTILE, StructuredDataKey.STORED_ENCHANTMENTS, StructuredDataKey.DYED_COLOR,
             StructuredDataKey.MAP_COLOR, StructuredDataKey.MAP_ID, StructuredDataKey.MAP_DECORATIONS, StructuredDataKey.MAP_POST_PROCESSING,
             StructuredDataKey.POTION_CONTENTS1_21_2, StructuredDataKey.SUSPICIOUS_STEW_EFFECTS, StructuredDataKey.WRITABLE_BOOK_CONTENT,
-            StructuredDataKey.WRITTEN_BOOK_CONTENT, StructuredDataKey.TRIM, StructuredDataKey.DEBUG_STICK_STATE, StructuredDataKey.ENTITY_DATA,
+            StructuredDataKey.WRITTEN_BOOK_CONTENT, StructuredDataKey.TRIM1_21_4, StructuredDataKey.DEBUG_STICK_STATE, StructuredDataKey.ENTITY_DATA,
             StructuredDataKey.BUCKET_ENTITY_DATA, StructuredDataKey.BLOCK_ENTITY_DATA, StructuredDataKey.INSTRUMENT1_21_2,
             StructuredDataKey.RECIPES, StructuredDataKey.LODESTONE_TRACKER, StructuredDataKey.FIREWORK_EXPLOSION, StructuredDataKey.FIREWORKS,
             StructuredDataKey.PROFILE, StructuredDataKey.NOTE_BLOCK_SOUND, StructuredDataKey.BANNER_PATTERNS, StructuredDataKey.BASE_COLOR,
@@ -186,7 +185,7 @@ public final class Protocol1_21_2To1_21_4 extends AbstractProtocol<ClientboundPa
             StructuredDataKey.USE_COOLDOWN, StructuredDataKey.DAMAGE, StructuredDataKey.EQUIPPABLE, StructuredDataKey.ITEM_MODEL,
             StructuredDataKey.GLIDER, StructuredDataKey.TOOLTIP_STYLE, StructuredDataKey.DEATH_PROTECTION,
             // Volatile thanks to containing item
-            StructuredDataKey.CHARGED_PROJECTILES1_21_2, StructuredDataKey.BUNDLE_CONTENTS1_21_2, StructuredDataKey.CONTAINER1_21_2, StructuredDataKey.USE_REMAINDER);
+            StructuredDataKey.CHARGED_PROJECTILES1_21_2, StructuredDataKey.BUNDLE_CONTENTS1_21_2, StructuredDataKey.CONTAINER1_21_2, StructuredDataKey.USE_REMAINDER1_21_2);
         super.onMappingDataLoaded();
     }
 

common/src/main/java/com/viaversion/viaversion/protocols/v1_21_2to1_21_4/packet/ServerboundPackets1_21_4.java

@@ -54,32 +54,33 @@ public enum ServerboundPackets1_21_4 implements ServerboundPacket1_21_4 {
     MOVE_VEHICLE, // 0x20
     PADDLE_BOAT, // 0x21
     PICK_ITEM_FROM_BLOCK, // 0x22
-    PICK_ITEM_FROM_ENTITY, // 0x22
+    PICK_ITEM_FROM_ENTITY, // 0x23
-    PING_REQUEST, // 0x23
+    PING_REQUEST, // 0x24
-    PLACE_RECIPE, // 0x24
+    PLACE_RECIPE, // 0x25
-    PLAYER_ABILITIES, // 0x25
+    PLAYER_ABILITIES, // 0x26
-    PLAYER_ACTION, // 0x26
+    PLAYER_ACTION, // 0x27
-    PLAYER_COMMAND, // 0x27
+    PLAYER_COMMAND, // 0x28
-    PLAYER_INPUT, // 0x28
+    PLAYER_INPUT, // 0x29
-    PONG, // 0x29
+    PLAYER_LOADED, // 0x2A
-    RECIPE_BOOK_CHANGE_SETTINGS, // 0x2A
+    PONG, // 0x2B
-    RECIPE_BOOK_SEEN_RECIPE, // 0x2B
+    RECIPE_BOOK_CHANGE_SETTINGS, // 0x2C
-    RENAME_ITEM, // 0x2C
+    RECIPE_BOOK_SEEN_RECIPE, // 0x2D
-    RESOURCE_PACK, // 0x2D
+    RENAME_ITEM, // 0x2E
-    SEEN_ADVANCEMENTS, // 0x2E
+    RESOURCE_PACK, // 0x2F
-    SELECT_TRADE, // 0x2F
+    SEEN_ADVANCEMENTS, // 0x30
-    SET_BEACON, // 0x30
+    SELECT_TRADE, // 0x31
-    SET_CARRIED_ITEM, // 0x31
+    SET_BEACON, // 0x32
-    SET_COMMAND_BLOCK, // 0x32
+    SET_CARRIED_ITEM, // 0x33
-    SET_COMMAND_MINECART, // 0x33
+    SET_COMMAND_BLOCK, // 0x34
-    SET_CREATIVE_MODE_SLOT, // 0x34
+    SET_COMMAND_MINECART, // 0x35
-    SET_JIGSAW_BLOCK, // 0x35
+    SET_CREATIVE_MODE_SLOT, // 0x36
-    SET_STRUCTURE_BLOCK, // 0x36
+    SET_JIGSAW_BLOCK, // 0x37
-    SIGN_UPDATE, // 0x37
+    SET_STRUCTURE_BLOCK, // 0x38
-    SWING, // 0x38
+    SIGN_UPDATE, // 0x39
-    TELEPORT_TO_ENTITY, // 0x39
+    SWING, // 0x3A
-    USE_ITEM_ON, // 0x3A
+    TELEPORT_TO_ENTITY, // 0x3B
-    USE_ITEM; // 0x3B
+    USE_ITEM_ON, // 0x3C
+    USE_ITEM; // 0x3D
 
     @Override
     public int getId() {

common/src/main/java/com/viaversion/viaversion/protocols/v1_21_2to1_21_4/rewriter/BlockItemPacketRewriter1_21_4.java

@@ -17,6 +17,12 @@
  */
 package com.viaversion.viaversion.protocols.v1_21_2to1_21_4.rewriter;
 
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.IntTag;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.api.minecraft.data.StructuredDataContainer;
+import com.viaversion.viaversion.api.minecraft.data.StructuredDataKey;
+import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_20_2;
 import com.viaversion.viaversion.api.type.types.version.Types1_21_2;
@@ -72,4 +78,54 @@ public final class BlockItemPacketRewriter1_21_4 extends StructuredItemRewriter<
         recipeRewriter.registerRecipeBookAdd(ClientboundPackets1_21_2.RECIPE_BOOK_ADD);
         recipeRewriter.registerPlaceGhostRecipe(ClientboundPackets1_21_2.PLACE_GHOST_RECIPE);
     }
+
+    @Override
+    public Item handleItemToClient(final UserConnection connection, final Item item) {
+        super.handleItemToClient(connection, item);
+
+        final Integer modelData = item.dataContainer().get(StructuredDataKey.CUSTOM_MODEL_DATA1_20_5);
+        if (modelData != null) {
+            saveTag(createCustomTag(item), new IntTag(modelData), "custom_model_data");
+        }
+
+        updateItemData(item);
+        return item;
+    }
+
+    @Override
+    public Item handleItemToServer(final UserConnection connection, final Item item) {
+        super.handleItemToServer(connection, item);
+
+        final StructuredDataContainer dataContainer = item.dataContainer();
+        final CompoundTag customData = dataContainer.get(StructuredDataKey.CUSTOM_DATA);
+        if (customData != null) {
+            if (customData.remove(nbtTagName("custom_model_data")) instanceof final IntTag customModelData) {
+                dataContainer.set(StructuredDataKey.CUSTOM_MODEL_DATA1_20_5, customModelData.asInt());
+                removeCustomTag(dataContainer, customData);
+            }
+        }
+
+        downgradeItemData(item);
+        return item;
+    }
+
+    public static void updateItemData(final Item item) {
+        final StructuredDataContainer dataContainer = item.dataContainer();
+        dataContainer.replaceKey(StructuredDataKey.CHARGED_PROJECTILES1_21_2, StructuredDataKey.CHARGED_PROJECTILES1_21_4);
+        dataContainer.replaceKey(StructuredDataKey.BUNDLE_CONTENTS1_21_2, StructuredDataKey.BUNDLE_CONTENTS1_21_4);
+        dataContainer.replaceKey(StructuredDataKey.CONTAINER1_21_2, StructuredDataKey.CONTAINER1_21_4);
+        dataContainer.replaceKey(StructuredDataKey.USE_REMAINDER1_21_2, StructuredDataKey.USE_REMAINDER1_21_4);
+        dataContainer.replaceKey(StructuredDataKey.TRIM1_20_5, StructuredDataKey.TRIM1_21_4);
+        dataContainer.remove(StructuredDataKey.CUSTOM_MODEL_DATA1_20_5);
+    }
+
+    public static void downgradeItemData(final Item item) {
+        final StructuredDataContainer dataContainer = item.dataContainer();
+        dataContainer.replaceKey(StructuredDataKey.CHARGED_PROJECTILES1_21_4, StructuredDataKey.CHARGED_PROJECTILES1_21_2);
+        dataContainer.replaceKey(StructuredDataKey.BUNDLE_CONTENTS1_21_4, StructuredDataKey.BUNDLE_CONTENTS1_21_2);
+        dataContainer.replaceKey(StructuredDataKey.CONTAINER1_21_4, StructuredDataKey.CONTAINER1_21_2);
+        dataContainer.replaceKey(StructuredDataKey.USE_REMAINDER1_21_4, StructuredDataKey.USE_REMAINDER1_21_2);
+        dataContainer.replaceKey(StructuredDataKey.TRIM1_21_4, StructuredDataKey.TRIM1_20_5);
+        dataContainer.remove(StructuredDataKey.CUSTOM_MODEL_DATA1_21_2);
+    }
 }

common/src/main/java/com/viaversion/viaversion/protocols/v1_21_2to1_21_4/rewriter/ComponentRewriter1_21_4.java

@@ -23,6 +23,7 @@ import com.viaversion.viaversion.protocols.v1_21_2to1_21_4.Protocol1_21_2To1_21_
 import com.viaversion.viaversion.protocols.v1_21to1_21_2.packet.ClientboundPacket1_21_2;
 import com.viaversion.viaversion.rewriter.ComponentRewriter;
 import com.viaversion.viaversion.util.SerializerVersion;
+import com.viaversion.viaversion.util.TagUtil;
 
 public final class ComponentRewriter1_21_4 extends ComponentRewriter<ClientboundPacket1_21_2> {
 
@@ -37,7 +38,7 @@ public final class ComponentRewriter1_21_4 extends ComponentRewriter<Clientbound
             return;
         }
 
-        // Remove or update data from componentsTag
+        TagUtil.removeNamespaced(componentsTag, "custom_model_data");
     }
 
     @Override

common/src/main/java/com/viaversion/viaversion/protocols/v1_21_2to1_21_4/rewriter/EntityPacketRewriter1_21_4.java

@@ -28,6 +28,7 @@ import com.viaversion.viaversion.api.type.types.version.Types1_21_2;
 import com.viaversion.viaversion.api.type.types.version.Types1_21_4;
 import com.viaversion.viaversion.protocols.v1_20_5to1_21.packet.ClientboundConfigurationPackets1_21;
 import com.viaversion.viaversion.protocols.v1_21_2to1_21_4.Protocol1_21_2To1_21_4;
+import com.viaversion.viaversion.protocols.v1_21_2to1_21_4.packet.ServerboundPackets1_21_4;
 import com.viaversion.viaversion.protocols.v1_21to1_21_2.packet.ClientboundPacket1_21_2;
 import com.viaversion.viaversion.protocols.v1_21to1_21_2.packet.ClientboundPackets1_21_2;
 import com.viaversion.viaversion.rewriter.EntityRewriter;
@@ -99,6 +100,16 @@ public final class EntityPacketRewriter1_21_4 extends EntityRewriter<Clientbound
             final String world = wrapper.passthrough(Types.STRING);
             trackWorldDataByKey1_20_5(wrapper.user(), dimensionId, world); // Tracks world height and name for chunk data and entity (un)tracking
         });
+
+        protocol.registerServerbound(ServerboundPackets1_21_4.MOVE_VEHICLE, wrapper -> {
+            wrapper.passthrough(Types.DOUBLE); // X
+            wrapper.passthrough(Types.DOUBLE); // Y
+            wrapper.passthrough(Types.DOUBLE); // Z
+            wrapper.passthrough(Types.FLOAT); // Yaw
+            wrapper.passthrough(Types.FLOAT); // Pitch
+            wrapper.read(Types.BOOLEAN); // On ground
+        });
+        protocol.cancelServerbound(ServerboundPackets1_21_4.PLAYER_LOADED);
     }
 
     @Override

common/src/main/java/com/viaversion/viaversion/protocols/v1_21to1_21_2/Protocol1_21To1_21_2.java

@@ -210,12 +210,12 @@ public final class Protocol1_21To1_21_2 extends AbstractProtocol<ClientboundPack
         Types1_21_2.STRUCTURED_DATA.filler(this).add(StructuredDataKey.CUSTOM_DATA, StructuredDataKey.MAX_STACK_SIZE, StructuredDataKey.MAX_DAMAGE,
             StructuredDataKey.UNBREAKABLE, StructuredDataKey.RARITY, StructuredDataKey.HIDE_TOOLTIP, StructuredDataKey.DAMAGE_RESISTANT,
             StructuredDataKey.CUSTOM_NAME, StructuredDataKey.LORE, StructuredDataKey.ENCHANTMENTS, StructuredDataKey.CAN_PLACE_ON,
-            StructuredDataKey.CAN_BREAK, StructuredDataKey.CUSTOM_MODEL_DATA, StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP,
+            StructuredDataKey.CAN_BREAK, StructuredDataKey.CUSTOM_MODEL_DATA1_20_5, StructuredDataKey.HIDE_ADDITIONAL_TOOLTIP,
             StructuredDataKey.REPAIR_COST, StructuredDataKey.CREATIVE_SLOT_LOCK, StructuredDataKey.ENCHANTMENT_GLINT_OVERRIDE,
             StructuredDataKey.INTANGIBLE_PROJECTILE, StructuredDataKey.STORED_ENCHANTMENTS, StructuredDataKey.DYED_COLOR,
             StructuredDataKey.MAP_COLOR, StructuredDataKey.MAP_ID, StructuredDataKey.MAP_DECORATIONS, StructuredDataKey.MAP_POST_PROCESSING,
             StructuredDataKey.POTION_CONTENTS1_21_2, StructuredDataKey.SUSPICIOUS_STEW_EFFECTS, StructuredDataKey.WRITABLE_BOOK_CONTENT,
-            StructuredDataKey.WRITTEN_BOOK_CONTENT, StructuredDataKey.TRIM, StructuredDataKey.DEBUG_STICK_STATE, StructuredDataKey.ENTITY_DATA,
+            StructuredDataKey.WRITTEN_BOOK_CONTENT, StructuredDataKey.TRIM1_20_5, StructuredDataKey.DEBUG_STICK_STATE, StructuredDataKey.ENTITY_DATA,
             StructuredDataKey.BUCKET_ENTITY_DATA, StructuredDataKey.BLOCK_ENTITY_DATA, StructuredDataKey.INSTRUMENT1_21_2,
             StructuredDataKey.RECIPES, StructuredDataKey.LODESTONE_TRACKER, StructuredDataKey.FIREWORK_EXPLOSION, StructuredDataKey.FIREWORKS,
             StructuredDataKey.PROFILE, StructuredDataKey.NOTE_BLOCK_SOUND, StructuredDataKey.BANNER_PATTERNS, StructuredDataKey.BASE_COLOR,
@@ -226,7 +226,7 @@ public final class Protocol1_21To1_21_2 extends AbstractProtocol<ClientboundPack
             StructuredDataKey.USE_COOLDOWN, StructuredDataKey.DAMAGE, StructuredDataKey.EQUIPPABLE, StructuredDataKey.ITEM_MODEL,
             StructuredDataKey.GLIDER, StructuredDataKey.TOOLTIP_STYLE, StructuredDataKey.DEATH_PROTECTION,
             // Volatile thanks to containing item
-            StructuredDataKey.CHARGED_PROJECTILES1_21_2, StructuredDataKey.BUNDLE_CONTENTS1_21_2, StructuredDataKey.CONTAINER1_21_2, StructuredDataKey.USE_REMAINDER);
+            StructuredDataKey.CHARGED_PROJECTILES1_21_4, StructuredDataKey.BUNDLE_CONTENTS1_21_4, StructuredDataKey.CONTAINER1_21_4, StructuredDataKey.USE_REMAINDER1_21_4);
         super.onMappingDataLoaded();
     }
 

common/src/main/java/com/viaversion/viaversion/protocols/v1_21to1_21_2/rewriter/BlockItemPacketRewriter1_21_2.java

@@ -569,7 +569,7 @@ public final class BlockItemPacketRewriter1_21_2 extends StructuredItemRewriter<
 
             dataContainer.set(StructuredDataKey.CONSUMABLE1_21_2, new Consumable1_21_2(food.eatSeconds(), 1 /* eat */, sound, true, consumeEffects));
             if (food.usingConvertsTo() != null) {
-                dataContainer.set(StructuredDataKey.USE_REMAINDER, food.usingConvertsTo());
+                dataContainer.set(StructuredDataKey.USE_REMAINDER1_21_2, food.usingConvertsTo());
             }
             return new FoodProperties1_21_2(food.nutrition(), food.saturationModifier(), food.canAlwaysEat());
         });
@@ -610,7 +610,7 @@ public final class BlockItemPacketRewriter1_21_2 extends StructuredItemRewriter<
         });
         dataContainer.replace(StructuredDataKey.FOOD1_21_2, StructuredDataKey.FOOD1_21, food -> {
             final Consumable1_21_2 consumableData = dataContainer.get(StructuredDataKey.CONSUMABLE1_21_2);
-            final Item useRemainderData = dataContainer.get(StructuredDataKey.USE_REMAINDER);
+            final Item useRemainderData = dataContainer.get(StructuredDataKey.USE_REMAINDER1_21_2);
             final float eatSeconds = consumableData != null ? consumableData.consumeSeconds() : 1.6F;
             final List<FoodProperties1_20_5.FoodEffect> foodEffects = new ArrayList<>();
             if (consumableData != null) {
@@ -637,7 +637,7 @@ public final class BlockItemPacketRewriter1_21_2 extends StructuredItemRewriter<
         dataContainer.remove(StructuredDataKey.REPAIRABLE);
         dataContainer.remove(StructuredDataKey.ENCHANTABLE);
         dataContainer.remove(StructuredDataKey.CONSUMABLE1_21_2);
-        dataContainer.remove(StructuredDataKey.USE_REMAINDER);
+        dataContainer.remove(StructuredDataKey.USE_REMAINDER1_21_2);
         dataContainer.remove(StructuredDataKey.USE_COOLDOWN);
         dataContainer.remove(StructuredDataKey.ITEM_MODEL);
         dataContainer.remove(StructuredDataKey.EQUIPPABLE);

common/src/main/java/com/viaversion/viaversion/rewriter/ItemRewriter.java

@@ -240,11 +240,11 @@ public class ItemRewriter<C extends ClientboundPacketType, S extends Serverbound
 
     public void registerCooldown1_21_2(C packetType) {
         protocol.registerClientbound(packetType, wrapper -> {
-            String itemIdentifier = wrapper.read(Types.OPTIONAL_STRING);
+            String itemIdentifier = wrapper.read(Types.STRING);
             if (itemIdentifier != null) {
                 itemIdentifier = mappedIdentifier(protocol.getMappingData().getFullItemMappings(), itemIdentifier);
             }
-            wrapper.write(Types.OPTIONAL_STRING, itemIdentifier);
+            wrapper.write(Types.STRING, itemIdentifier);
         });
     }
 

common/src/main/java/com/viaversion/viaversion/rewriter/ParticleRewriter.java

@@ -181,9 +181,11 @@ public class ParticleRewriter<C extends ClientboundPacketType> implements com.vi
             wrapper.passthrough(Types.DOUBLE); // X
             wrapper.passthrough(Types.DOUBLE); // Y
             wrapper.passthrough(Types.DOUBLE); // Z
+            if (wrapper.passthrough(Types.BOOLEAN)) {
                 wrapper.passthrough(Types.DOUBLE); // Knockback X
                 wrapper.passthrough(Types.DOUBLE); // Knockback Y
                 wrapper.passthrough(Types.DOUBLE); // Knockback Z
+            }
 
             final Particle explosionParticle = wrapper.read(particleType);
             wrapper.write(mappedParticleType, explosionParticle);

common/src/main/java/com/viaversion/viaversion/rewriter/StructuredItemRewriter.java

@@ -117,7 +117,7 @@ public class StructuredItemRewriter<C extends ClientboundPacketType, S extends S
         final MappingData mappingData = protocol.getMappingData();
         if (mappingData.getItemMappings() != null) {
             final Int2IntFunction itemIdRewriter = clientbound ? mappingData::getNewItemId : mappingData::getOldItemId;
-            container.replace(StructuredDataKey.TRIM, value -> value.rewrite(itemIdRewriter));
+            container.replace(StructuredDataKey.TRIM1_20_5, value -> value.rewrite(itemIdRewriter));
             container.replace(StructuredDataKey.POT_DECORATIONS, value -> value.rewrite(itemIdRewriter));
             container.replace(StructuredDataKey.REPAIRABLE, value -> value.rewrite(itemIdRewriter));
         }